Light transport came in close proximity to an small aircraft while making an approach near the outer...

Attributes
ACN	106276
Time
Date	198903
Day	Sun
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : sus
State Reference	MO
Altitude	msl bound lower : 1700 msl bound upper : 2300
Environment
Flight Conditions	Marginal
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : sus tower : jfk
Operator	general aviation : personal
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	cruise other descent : approach
Route In Use	arrival other
Flight Plan	IFR
Aircraft 2
Operator	general aviation : corporate
Make Model Name	Light Transport, Low Wing, 2 Turbojet Eng
Flight Phase	cruise other descent : approach
Route In Use	arrival other
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : instrument
Experience	flight time last 90 days : 20 flight time total : 400 flight time type : 20
ASRS Report	106276
Person 2
Affiliation	Other
Function	flight crew : captain oversight : pic
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	conflict : airborne less severe non adherence : published procedure non adherence : required legal separation
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 100 vertical : 500
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

I was on an IFR flight plan terminating at sus. Stl approach had just handed me off to sus tower after giving me vectors to intercept the localizer of 8R ILS approach. Sus tower cleared me for the approach as #2 to follow an small aircraft X or small aircraft Y and to slow to minimum approach speed. Just outside the OM I was told to watch for an light transport on my left at 4 mi. I reported negative contact due to dense haze. ATC asked my altitude, I reported 2200' MSL. ATC advised me the light transport was at 2200' MSL coming at me. I decided to evade the light transport by climbing above the G/south 100'. ATC advised me the light transport saw me and would pass me since he was faster. The light transport was then sighted by me at approximately 500' below and 100' to the right. I advised ATC I saw the light transport and ATC advise me to follow the light transport on the ILS approach and cautioned 'wake turbulence.' the light transport passed under me and then climbed back to the G/south inside the OM. I was cleared to land as #2 behind the light transport. I feel this situation was unnecessary and that ATC should have decided earlier to place on the planes in a holding pattern or vectored differently so that sep was proper. Also the light transport had to break minimums to pass under me on an ILS approach.

Original NASA ASRS Text

Title: LTT CAME IN CLOSE PROX TO AN SMA WHILE MAKING AN APCH NEAR THE OUTER MARKER.

Narrative: I WAS ON AN IFR FLT PLAN TERMINATING AT SUS. STL APCH HAD JUST HANDED ME OFF TO SUS TWR AFTER GIVING ME VECTORS TO INTERCEPT THE LOC OF 8R ILS APCH. SUS TWR CLRED ME FOR THE APCH AS #2 TO FOLLOW AN SMA X OR SMA Y AND TO SLOW TO MINIMUM APCH SPD. JUST OUTSIDE THE OM I WAS TOLD TO WATCH FOR AN LTT ON MY LEFT AT 4 MI. I RPTED NEGATIVE CONTACT DUE TO DENSE HAZE. ATC ASKED MY ALT, I RPTED 2200' MSL. ATC ADVISED ME THE LTT WAS AT 2200' MSL COMING AT ME. I DECIDED TO EVADE THE LTT BY CLBING ABOVE THE G/S 100'. ATC ADVISED ME THE LTT SAW ME AND WOULD PASS ME SINCE HE WAS FASTER. THE LTT WAS THEN SIGHTED BY ME AT APPROX 500' BELOW AND 100' TO THE RIGHT. I ADVISED ATC I SAW THE LTT AND ATC ADVISE ME TO FOLLOW THE LTT ON THE ILS APCH AND CAUTIONED 'WAKE TURB.' THE LTT PASSED UNDER ME AND THEN CLBED BACK TO THE G/S INSIDE THE OM. I WAS CLRED TO LAND AS #2 BEHIND THE LTT. I FEEL THIS SITUATION WAS UNNECESSARY AND THAT ATC SHOULD HAVE DECIDED EARLIER TO PLACE ON THE PLANES IN A HOLDING PATTERN OR VECTORED DIFFERENTLY SO THAT SEP WAS PROPER. ALSO THE LTT HAD TO BREAK MINIMUMS TO PASS UNDER ME ON AN ILS APCH.

Data retrieved from NASA's ASRS site as of August 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

Light transport came in close proximity to an small aircraft while making an approach near the outer marker.